Ironically, when Redis changed their license a couple of months ago, I commented back then [1]:

But who knows what the future holds? Maybe the Redis team will change their mind and revert back the decision like Elastic Search did a few weeks ago: https://news.ycombinator.com/item?id=41394797

Yeah, that future had come, and Redis is free again!

Thanks antirez and to all the team behind Redis.

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1. https://news.ycombinator.com/item?id=41611636#41612750